a beam of monoenergetic photons of energy 9 eV is incident on a hydrogen gas containing all atoms in ground state it is found that the beam is fully transmitted without absorption why
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Answer:
This is because it requires at least 10.2 eV energy for electrons to go from n1 shell to n2 shell.
Explanation:
energy of n1 shell is -13.6eV.
enegy of n2 shell is -3.4eV.
so, minimum required energy is -3.4-(-13.6) eV. =10.2eV.
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